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Port Jefferson Weather Today

Temperature, Feels Like, Rain Chance & Hourly Forecast in Port Jefferson

Port Jefferson temperature today is 16°, feels like 15°, with a humidity level of 68% and wind at 14.47 km/h. Rain chance today is 0%. Use the hourly forecast and 5-day outlook below to plan your day.

Tomorrow in Port Jefferson: expect a high of 25° and a low of 16°, with broken clouds.

clear sky
16°
clear sky
H: 17° L: 13°
Feels like 15°
AQI: Moderate (3/5)
Port Jefferson
Weather Updated Sep 15, 2026 1:07 PM
Humidity
68%
Dew 10°
Wind speed
14.47 km/h
NE · G24.16
Pressure
1026 hPa
Visibility
10 km
Windy Conditions
Wind speed is 14.47 km/h.
Weather Summary
Currently in Port Jefferson, expect varied conditions with mild temperatures around 16°. Winds are a light breeze.
Tue
broken clouds
20° 13°
Wed
broken clouds
25° 16°
Thu
broken clouds
25° 22°
Fri
clear sky
24° 21°
Sat
few clouds
20° 17°
Sun
overcast clouds
18° 18°
Daily Weather Forecast
Tuesday
09/15/2026
broken clouds
13°
20°
Wednesday
09/16/2026
broken clouds
16°
25°
Thursday
09/17/2026
broken clouds
22°
25°
Friday
09/18/2026
clear sky
21°
24°
Saturday
09/19/2026
few clouds
17°
20°
Sunday
09/20/2026
overcast clouds
18°
18°
Precipitation Probability
0%
05
0%
08
0%
11
0%
14
0%
17
0%
20
0%
23
0%
02
0%
05
0%
08
0%
11
0%
14
0%
17
0%
20
0%
23
0%
02
Evolution
Daily Weather Forecast Evolution (°C)
Lowest temperature
Highest temperature
Temperature Forecast (48h)
16°
Tue
05:00
16°
 
19°
 
20°
 
20°
Tue
17:00
18°
 
16°
 
16°
 
16°
Wed
05:00
19°
 
22°
 
25°
 
23°
Wed
17:00
22°
 
22°
 
23°
 
Hot (≥30°)
Warm
Cool
Cold (<0°)
Weather Map
Sun & Moon
Sunrise
Sunrise
06:32
Sunset
Sunset
19:02
Moon Phase
Waxing Crescent (19%)
Timezone: GMT+05:30
Last updated: Sep 15, 2026 1:07 PM · Data refreshes every 5 min
Location Info
Latitude
Latitude
40.946491
Longitude
Longitude
-73.069267
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More about Port Jefferson
Content curated by the NearWeather editorial team · Updated periodically
Port Jefferson is a hamlet and census-designated place in the Town of Brookhaven in Suffolk County, New York, on the North Shore of Long Island. It is situated on the north shore of the Long Island Sound, and is the largest village within the town of Brookhaven. The climate in Port Jefferson is humid subtropical, with warm summers and cold winters. The average high temperature in the summer is around 81°F (27°C), while the average low temperature in the winter is around 28°F (-2°C). Year-round, the average temperature is around 54°F (12°C). The average precipitation is around 44 inches (112 cm) annually.
Weather data sourced from OpenWeatherMap. Forecasts are estimates and may differ from actual conditions. For severe weather, consult your local meteorological authority.
FAQ's about Port Jefferson
What is the temperature in Port Jefferson right now?

The current temperature in Port Jefferson is 16°, and it feels like 15°. Today's high is 17° and the low is 13°.

Will it rain in Port Jefferson today?

No rain is expected in Port Jefferson today (0% chance). Conditions are currently clear sky.

What is the weather in Port Jefferson today?

Port Jefferson is experiencing clear sky with a temperature of 16°. Humidity is at 68% and wind speed is 14.47 km/h from the NE.

What is the humidity in Port Jefferson today?

Humidity in Port Jefferson is 68% right now, with a dew point of 10°. Comfort levels are moderate.

What is the wind speed in Port Jefferson today?

Wind speed in Port Jefferson is 14.47 km/h, flowing at 42° NE wind direction. Gusts up to 24.16 km/h.

What is the 5-day forecast for Port Jefferson?

NearWeather provides a detailed 5-day forecast and 48-hour hourly forecast for Port Jefferson. Today's high is 17° and low is 13°, with a 0% chance of rain. Scroll up to view the full day-by-day and hourly breakdown.

What does it feel like in Port Jefferson today?

It feels like 15° in Port Jefferson today, with 0% cloud cover and 10 km visibility.

Weather in Port Jefferson
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